Overview
This is a multicenter, open-label, phase I/IIa to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary antitumor activity of pan-KRAS inhibitor JAB-23E73 in patients with advanced solid tumors harboring KRAS mutations or amplification. The study consists of 2 phases: Phase 1 Dose Escalation and Phase IIa Dose Expansion.
Description
Study JAB-23E73-1001 is a global multicenter, open-label Phase 1/2a study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary anticancer activity of JAB-23E73 as a single agent in adult patients with advanced solid tumors with KRAS alteration. This study consists of a Phase 1a dose-escalation, followed by Phase 1b dose-expansion (dose optimization) and Phase 2a indication expansion. After completing dose-escalation, the MTD or preliminary RP2D of JAB-23E73 will be determined. Then, two of the alternative dosages of JAB-23E73 will be selected to further evaluate the efficacy, safety and PK in patients with KRAS-alternated NSCLC or other tumors, and patients may be further selected by certain/several types of KRAS-alternations based on dose escalation data. The RP2D will be determined according to the safety, efficacy and PK data from phase 1b.
Eligibility
Inclusion Criteria:
- Histological or cytologically proven diagnosis of a locally advanced, unresectable, and/or metastatic solid tumor cancer with evidence of KRAS gene alteration (including gene mutation and wild type amplification).
- Able to provide an archived tumor tissue sample or fresh biopsy sample.
- Life expectancy ≥3 months at the start of treatment.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
- ≥1 measurable lesion per RECIST v1.1.
- Adequate organ function.
Exclusion Criteria:
- Unable to swallow oral medications or with gastrointestinal dysfunction or gastrointestinal disease that significantly alters the absorption of medication.
- Previous treatment with rat sarcoma (RAS) targeting agents.
- Symptomatic, untreated, or actively progressing known central nervous system (CNS) metastases.
- Impaired cardiovascular function or clinically significant cardiac disease.
- Mean QT interval corrected using Fridericia's formula (QTcF) \>470 msec.
- Females who are pregnant or breastfeeding.
